Home / 147,122.10-220,683.15-88,139.70

Finding the Fourth Proportional to 147,122.10, 220,683.15 and 88,139.70

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Solution

The fourth proportional to 147,122.10, 220,683.15 and 88,139.70 is: 132,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,122.10 : 220,683.15 = 88,139.70 : x
  2. Step 2: Convert to fraction form
    147,122.10/220,683.15 = 88,139.70/x
  3. Step 3: Cross multiply
    147,122.10x = 220,683.15 × 88,139.70
  4. Step 4: Simplify right side
    147,122.10x = 19,450,946,636.06
  5. Step 5: Solve for x
    x = 19,450,946,636.06/147,122.10
  6. Step 6: Final answer
    x = 132,209.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.